Title :
Performance of strain-free stimulated Brillouin scattering suppression fiber
Author :
Shiraki, Kazuyuki ; Ohashi, Masaharu ; Tateda, Mitsuhiro
Author_Institution :
NTT Access Network Syst. Labs., Ibaraki, Japan
fDate :
4/1/1996 12:00:00 AM
Abstract :
We have investigated experimentally the performance of an SBS suppression fiber with a nonuniform dopant concentration along its length fabricated by the VAD method. We have achieved an SBS threshold of 15 dBm against a continuous wave at 1.55 μm. This is 7 dB larger than that of conventional fiber. We have confirmed experimentally that the increase in the SBS threshold can be estimated from the ratio of the Brillouin frequency shift change over the effective interaction length to the intrinsic Brillouin gain bandwidth. Moreover, we have confirmed that there is no BER degradation after a transmission of 138 km through a 2.5 Gb/s intensity modulation direct detection system when the SBS suppression fiber is used with an input power of 16 dBm
Keywords :
optical fibre communication; optical fibre fabrication; optical fibre testing; optical modulation; stimulated Brillouin scattering; vapour deposition; 1.55 mum; 138 km; 2.5 Gbit/s; BER degradation; Brillouin frequency shift change ratio; SBS suppression fiber; SBS threshold; VAD method; continuous wave; effective interaction length; input power; intensity modulation direct detection system; intrinsic Brillouin gain bandwidth; nonuniform dopant concentration; strain-free stimulated Brillouin scattering suppression fiber; Bandwidth; Brillouin scattering; Fiber nonlinear optics; Frequency; Optical fiber polarization; Optical fibers; Optical mixing; Optical refraction; Optical scattering; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
